Churn



UNITEDV STATES PATENT OEEICE.

CIIARLES'L. oKELLEY, on ASI-I eRovE, MISSOURI.

CHURN.

SPECIFICATION forming part of Letters Patent No. 567,354, datedSeptember 8, 1896.

Alipncaion mea August s1, 1895. seria No. 561,126. oro man.)

To all wiz/0711, it Incty concern:

Be it known that I, CHARLES L. OKELLEY, a citizen of the United States,residing at Ash Grove, in the county of Greene and State of Missouri,have invented a new and useful Churn, of which the following is aspecification. Y

My invention relates to churns, and particularly to the means formounting the dasherrod to prevent the escape through the bearing of thecontents of the receptacle; and the object in view is to provide such aconstruction and arrangement of parts as Will facilitate theintroduction of material for tempering the contents of the receptacleand will allow the progress of the churning operation to be ascertainedwithout removing the churncover.

With these and other objects in View my invention consists of thevarious parts and novel arrangement and combination thereof,

'as set forth hereinafter by description and claim.

In the drawings, Figure 1 is a perspective View of my improvement withparts broken away. Fig. 2 is a central vertical section on a line withthe eccentric-shaft and dasherrod. Fig. 3 is a detail view of theextended bearing and churn-cap. Fig. 4 is a perspective detail of theeccentric coupling to the dasher-rod. Fig. 5 is a detail View of theswinging portion or door of thevinclosure to show the notch iu its loweredge for engagement with the beveled stud.

Reference-numeral 1 designates the main upright of the frame, composedof two parallel bars 2, braced apart by rods 3, reduced at either endand threaded to receive the clamping-nuts 4, which secure said barsspaced apart properly to support the main shaft 5 in the upper portionand counter-shaft G in the lower portion of the frame. A second pair offrame-bars 7 is secured midway of its length to the middle portion ofthe upright frame by bolts and nuts 8, and is rigidly spaced byspacing-rods 9 at either end,.similar to rods 3. These bars 7 aredownwardly bent at their lower ends to forni strut-braces to the mainframe, and the upper free ends of said bars 7 arecarried outhorizontally over the churn 10 and provided with eccentric-shaft 12,suitably journaled therein in vertical alinement with the churn. Attheirlower extremities bars 2 and 7 are iianged and perforated to be firmly`secured to the iioor or platform 13 by screws or bolts 14.

The outer projecting end of main shaft 5 is screw-threaded to receivethe operatingcrank 15, and is provided adjacent thereto and within. theframe 1 with a drive-wheel 16 of the sprocket variety. This drivewheelgears by means of sprocket-chain 17 with a smaller sprocketepulley 18,alined therewith on shaft 6. On the further end of shaft 6 atransmittinggear 19 is secured, which is a sprocket-wheel of the samesize as the drive- 1 side, perforated to receive an adjusting setv lscrew 23, by which it is retained in its proper adjustment on its shaft.Each of the shafts is turned down at either bearing end to provide ashoulder 24 within the frame to allow slight longitudinal play of theshaft in its bearings, so as to give greater ease of motion.

The drive-shaf t or crank-shaft 5 is not journaled in the bars 2, butpasses through vertical' slots therethrough and is j ournaled inbearing-plates 24, one at either end, which are provided withguide-slots 25 to reciprocate on screw-bolts 26. By this means slack 'inthe sprocket-chain 17 may be taken up and the shaft 5 may be raised orlowered, or A y trued in its bearings, by shifting one or both of theplates 24n and tightening them in place by the bolts 26.

The churn-cover 27 is provided on its upper face with aradially-flatring or flange 27a, secured immediately surrounding the usual drip-cupor dished-out portion 2S in said cover. Adjacent to its inner edge thisflange is provided with an inclosure 29 in the form of an inverted conein two halves, one of which constitutes a Walled support 30, and issoldered or otherwise permanently secured to said .flange 27a, and theother of which constitutes-a door 31, and is hinged thereto at one ofits lower corners by means of the horizontal ear 32 and the vertical pin33. Near its opposite corner door 31 has a sharp notch 3l in its bottomedge to click over the bev- IOO eled securing-lug 34, projecting fromflange 27 a, so as to hold the door tightly closed. A loop or knob 35 isprovided near said locking corner by which to open and close the door.

The cone 29 is truncated near its apex and provided with a tubularvertical bearing 36, soldered to permanent supporting-wall 30. Thisbearing projects slightly within the cone and extends upwardly in aflaring mouth or funnel 37. One main purpose of this con.- icalinclosure 29 is to provide an extended guide-bearing for rthe dasher rodor staff 38 of the churn, so as to insure precision of movement andfreedom from binding of said dasher-rod against the churn-cover. Theinner bearing for said rod is the usual coverhole 39, and the outerbearing is the long bearing 36, rigidly braced by the flaredsupporting-wall 30, said hole or opening 39 being sufliciently large toloosely receive the rod and allow adhering milk globules or buttergrains to be carried by the rod when raised into the inclosure or cap29.

Reciprocating motion is given to the churndasher by means of aneccentric 40, keyed or otherwise xed on shaft l2 and peripherallygrooved to receive the internal retaining-bead 41, formed on theeccentricstrap 42. This strap is connected to the upper end of thedasher-rod 38 by means of the outwardlybent ends of the strap, which arebrought together by set-screw 43 and transversely slitted at 44 and havesemicircular bearings 45 formed in their opposing faces to receive thestub-pivots 46 of the socket 47. This socket 47 sets over the dasher-rodand is secured thereto by thumb-screw 48, and is adj usted to theeccentric by passing its upward ear or lug 49 within slits 44, so as tobring stub-pivots 46 between the bearing-faces 45, which are thenclamped in place around said pivots by set-screw 43.

The operation of my improved churn mechanism is obvious, so as to needno detailed explanation. The uniform rotary motion transmitted by thesprocket-gearing is converted into reciprocating motion by means of theeccentric mechanism. This is much more positive than the ordinary crankfor the reason that there is no lateral yielding and no loose joints forvertical play, so that no wabbling of the dasher-rod at its upper end ispossible. At its lower or intermediate portion said dasher-rod isrigidly guided in the extended and firmly-braced bearings of thechurncover, so that the motion thereof is necessarily truly vertical,with no possibility of the rod to Wabble .or of the churn to creep. TheI special framework which supports the moving parts is exceedinglysimple and at the same time exceedingly strong and efcient, economizingspace and providing a compact adjustment for the churn.

Vhatever cream may spatter through the perforated cover is caught by theconical walls of the inclosure 29 and ows down the sloping sides of theportion 28 back into the churn. If any cream works up on theflasher-rod, it is caught by the funnel 37. At any time the inside ofsaid inclosure may be inspected by swinging open the door 3l. By thismeans also the progress of the churning may be judged from an inspectionof the milk globules or butter grains on the raised rod within theinclosure.

The churn maybe washed down through the open door or the cream temperedby pouring in through the cover-hole 39 hot or cold water, as required,without removing the cover.

What I claim is- The combination with the reciprocating dasher-rod of achurn, and the churn-cover having a central rod-opening looselyreceiving the rod, and an annular dished portion surrounding saidopening; of atrunco-conical cap or inclosure having at its lower edge aflat attaching ring or flange detachably fastened on top of thechurn-coverdirectly surrounding said annular dished portion and providedwith a beveled securing-lug, and having at its upper end a cylindricalrod-bearing extended into a flared mouth or funnel, said cap orinclosure essentially comprising duplicate sections, one of which formsa door-section 3l hinged at one of its lower corners to the attachingring or flange and provided near its opposite lower corner with a notchadapted to spring into engagement with said securinglug when thedoor-section is closed, said doorsection, being adapted to be opened toallow for an inspection of the material adhering to the dasher-rod whenthe latter is raised, and also for the introduction of materials intothe churn to facilitate the churning operation without removing thechurn-cover, substantially as set forth.

In testimonyv that I claim the foregoing as my own I have hereto affixedmy signature in the presence of two witnesses.

, CHARLES L. OKELLEY.

Witnesses:

A. C. TwADDELL, J. N. CoMEGYs.

IOO

